/Engine/Source/Runtime/Core/Public/GenericPlatform/GenericPlatformMisc.h
Different types of Page Fault stats
struct FPageFaultStats
uint64
HardPageFaults
Page faults for data on disk (platform dependent)
uint64
SoftPageFaults
Page faults for data already in memory (platform dependent)
uint64
TotalPageFaults
All page fault types